subtraction/with-borrowing/hard · 세트 65

20 problems
1
6 - 3 =
2
2 - 1 =
3
6 - 2 =
4
8 - 1 =
5
5 - 1 =
6
4 - 3 =
7
9 - 6 =
8
5 - 4 =
9
5 - 4 =
10
7 - 4 =
11
8 - 3 =
12
9 - 8 =
13
2 - 1 =
14
8 - 1 =
15
6 - 2 =
16
9 - 3 =
17
5 - 3 =
18
4 - 3 =
19
2 - 1 =
20
4 - 1 =
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